Frog point



March 1, 1932. D. E. ANDERSON FROG POINT Filed Dec.

6, 1950 2 Sheets-Sheet l Qwuentoz Dan/0d Z. fluierson,

dummy Patented Mar. 1, 1932 DAVID E. ANDERSON, OF ST. I AULQ MINNESOTAFROG Application filed December My invention relates to frog points forrailways where it is desired to provide a frog having a reinforcednature at the extreme point and from there back into the main body ofthe rail.

A feature of the invention resides in providing a shoulder by forming abevel conforming to the flare of the wheel flange of the railway truckwheels which are adapted to pass over the frog, the flare of bevel fromthe extreme point back into the frog being greater than any flare in thehead of the rail and thereby providing a distinct and pronouncedshoulder right down to the very extreme tip of the frog point.

It is also a feature of my frog point to provide an extended portionwhich projects beyond the wheel engaging point end of the frog or beyondthe point where the wheel leaves the end of the frog which is formedintegral with the frog point and which is provided with shoulders formedby beveling the side walls of the rail at an angle conforming to theflare of the wheel flange which passes over the frog point i In a frogpoint for railway tracks it is important that the wheel flange have aproper clearance and that the sleeve of the wheel which bears on thepoint be supported by the same out to the extreme end of the frog pointso as to carry the wheel over onto the adjoining rail or the guardswithout a jar or pounding effect which causes unnecessary wear. Byholding the frog point up to its proper height right out to the extremetip end this can be accomplished. My frog point is designed with aportion extending beyond the wearing surface which is arcuated down jaway from the wearing surface toward the 49 web ofhe rail which formsthe frog point and this portion provides a nose on the end of the frogpoint which is adapted to reinforce and protect the same. This nose isan integral part with the frog point rail and is formed at the same timethat the frog point is formed by beveling the sides of the rail headaway to the desired shape. In forming this nose portion I carry thebevel of the frog point out into the same which provides sub 59 stantialreinforcing shoulders under the nose POINT 6, 1930. Serial No. 500,527.

of the frog point and thereby provides a frog point of a stronger naturewith a substantial guard or protective portion projecting beyond thewheel engaging point of the frog.

This nose structure formed on my frog point as herein set forth alsoprovides a wheel flange guide in advance of the frog point andreinforces the tip of the frog point to stand more wear and wheelfriction than has been accomplished heretofore.

The features, details and particular construction will be fully andclearly defined.

In the drawings forming part of thisspecifloat-ion:

Figure 1 is a plan view of my frog point as associated with thesupporting fillers and guard rails.

. Figure 2 is an enlarged plan view of the frog point and filler blocks.

Figure 3 is a perspective end View of my frog point.

Figure 4 illustrates a perspective of the nose portion of the frog pointas it would appear cut away from the frog point on the line 41-4 ofFigure 3.

Figure 5 is a section on the line 55 of Figure 1.

Figure 6 is a section on the line 6-6 of Fig ure 1.

Figure 7 is a section on the line 77 of Figure 1.

The drawings illustrate the frog point A which is formed from theordinary railroad rail which is provided witha head portion 10, a web11, and a base flange 12. Informing the frog point A the head portion 10of the rail is cut on a bevel to provide the angularly sloping sides 13which extend at an angle or bevel conforming to the flare of the wheelflange which is adapted to pass over the frog point A. r

The beveled sides 13 extend at a greater angle than the sloping of theside of the rail head 10 and to conform with the flare of the wheelflange which rides over the frog point.

This provides a frog point with pronounced shoulder portions 14Lextending under the frog point right down to the extreme tip end 15 ofthe frog point A. The extreme end 15 as indicated in the drawing of thefrog point A means which strengthens the frog represents the end of thewheel bearing portion of the frog point A. The wheel in riding over thefrog point A leaves the frog point A at the point when traveling awayfrom the point. l/Vhen traveling toward the point A the wheel firstengages and starts to ride on the frog point at the point 15. This point15 is the point which ordinarily would terminate the frog endheretofore; however, I carry the frog point A beyond this point toprovide the nose B which is formed with an arcuated portion 16 extendingfrom the point 15 down to the point 17 which joins with the rail web 11.This arcuated nose portion 16 formed on the front end of the frog pointA provides a reinforcing portion to the end of the frog point A whichacts as a guard extending beyond the point 15.

Normally the frog would end at the point 15 but with this guard nose Bon the end of the frog point A, I accomplish a reinforcing at the point15 and guards the end of the same. This guard nose B on the end of thefrog point A acts to insure the carrying of the wheel flange C, aportion of which is illustrated in dotted outline in Figure 5, onto andoff of the frog point A with greater assurance of the proper riding ofthe wheel on and off of the frog point as the wheels of the railroadtrucks pass over the same.

The shoulders 14 extending along under the sides of the frog point Aextend right down to the very extreme tip of the nose B or virtuallyright to the point 17. In this manner the shoulders 14 act to reinforcethe frog point A and to protect the wearing end 15 of the frog. Thisnose portion carries the web 11 out beyond the end 15 of the frog pointand provides an extra bolt hole 18 in the web 11 which extends ahead ofthe end 15 of the frog point A.

Suitable fillers D are adapted to be bolted against the web 11 of thefrog A and these fillers are provided with shoulder portions 20 whichextend up under the shoulders 14 and engage closely therewith to firmlysupport the frog point A and the nose B thereof between the sides of thefillers D. The guard rails E are positioned on each side of the frogpoint A and are bolted or connected rigidly with the fillers D. Thefillers D carry the weight of the frog point directly to the lowerfianges12 of the rails and when the guard rails, which are formed withthe head portion 10, web 11, and the base flange 12, are connected bysuitable bolts, not shown, the parts are all held togetherrigidly andthe frog point A is supported in a substantial manner being reinforcedby the shoulders 14:

and the nose portion B so as to provide a frog point A having a verylong wearing and serviceable nature. The nose will guide the wheelsreadily onto and off of the frog point- A and the added materialprovided by the nosestructure with the shoulders 14 extending right outto the top 17 provides a frog point capable of carrying the heavy loadseven with the present day increased weight of the rolling equipment nowbeing used on railways.

In accordance with the patent statutes I have described the principlesof my frog point and the advantages thereof, all of which I haveendeavored to represent the best em bodiment thereof. The drawings showthe structure and variations may be made within the scope of thefollowing claims without departing from the purpose and intent of theinvention.

I claim:

1. A railroad frog point formed from a stock rail section, beveled sidesconforming to the flare of the wheel formed on said frog point to theextreme end thereof to provide supporting and frog point wearingsurface, said nose portion being integral with the frog point and havingshoulders formed as a continuation of the shoulders formed by bevelingthe frog point a on either side thereof.

2. A frog point formed from a stock railroad rail section including, abeveled wearing surface at an angle with the vertical formed on eitherside thereof to the extreme tip of said frog point, an integral noseguard formed on said frog tip end including an arcuated portion of therail head and a web portion of the rail with a base flange and shouldersextending under said beveled edge of said frog point and nose guard.

3. A frog point formed from a stock railroad rail including, a noseguard formed on the tip end of said frog point having an arcuate guardportion extending from the tip end of the frog to the web of the rail,and beveled wearing surfaces at an angle with the vertical on eitherside of said frog point and nose guard, the bevel of which conforms tothe flare of the wheel flange which 1 is adapted to ride over the frogpoint.

1-. A frog for railroad tracks including, a section formed from the railhaving a head, flange and base flange portion, a forward guard portionformed extending from the tip of said frog point and integral therewith,and beveled wearing surfaces on either side of said guard and frog pointextending from the tip end of said guard to the body of the rail formingsaid point, said beveled sur faces being greater than the rail head sideto provide a longitudinal shoulder extending to the tip end of saidguard beyond the wearing tip of said frog point.

5. A railroad frog including, beveled wheel flange wearing surfacesformed on the sides of the frog point to the extreme tip, the bevel ofwhich is greater than the side formation of the main rail to increasethe wearing material down to the extreme tip of the frog shoulders underthe frog point, anose portion extending beyond the point, and aforwardly projecting guard portion integrally formed as a continuationof the tip of said frog projecting beyond the point of contact of thewheel and having beveled wheel wearing flanges on either side thereof asa continuation of the flanges of the frog point, and shoulders extendinglon gitudinally under said guard and continuing along the sides of saidfrog point to the main rail.

6. A frog point guard including, a projecting portion formed of the railhead from which the frog point is formed, and including beveled wheelflange wearing surfacesv on either side thereof converging into thebeveled wheel flange wearing surfaces formed on the sides of said frogpoint to form a continuation thereof, and shoulders under said beveledwheel flange wearing surfaces to the extreme end of said frog point andguard, adapted to be engaged by the filler block engaging under thesame.

7 A frog for railways and guard for the end thereof including, beveledwheel flange wearing surfaces formed along the sides of said frog toprovide longitudinal shoulders under said flanges, filler blocks forengaging said shoulders and a guard portion formed integral with thefrog point and extending beyond the wheel engaging top surface thereof,said guard including beveled wheel flange wearing surfaces as acontinuation of the beveled wheel flange wearing surfaces on said frogpoint, and shoulders under said wheel flange Wearing surfaces on saidguard to the extreme tip thereof as a continuation of the shouldersunder the beveled sides of said frog point.

8. A frog point including, a guard end ex tending beyond the wearingwheel engaging surface on top of the rail head, longitudinally extendingbeveled wheel flange wearing surfaces on the sides of said guard andsaid frog point adapted to converge into the rail head and having abevel greater than the side slope formation of the rail head, andlongitudinal shoulders under said flanges adapted to engage with thefiller blocks of a frog to support the same to the extreme tip end ofthe frog point and guard.

DAVID E. ANDERSON.

